The 05103-45 Wind Monitor is designed for harsh alpine conditions. To discourage ice buildup, the sensor’s housing is black and covered with an ice-resistant coating. The 05103-45 has a smaller propeller diameter than the other wind monitor models, which minimizes vibration at high wind speeds. Wind speed is measured with a helicoid-shaped, four-blade propeller. Wind direction is sensed by the orientation of the sensor body, which is connected to a potentiometer.

Features

Sensor Cabling
The probe's cable is wired into a small junction box at the base of the sensor.

Propeller Specifications
Range: 0 to 224 mph (0 to 100 m/s)
Gust Survival: 220 mph (100 m/s)
Accuracy: ±0.6 mph (0.3 m/s)
Threshold: 2.2 mph (1.0 m/s)
Distance constant: 8.9 ft (2.7 m) at 63% recovery

Vane Specifications
Accuracy: ±5°
Damping ratio: 0.25
Delay distance: 4.3 ft (1.3 m) at 50% recovery
Range: 360° mechanical
            355° electrical
Threshold: 2.4 mph (1.1 m/s) at 10° displacement

Other Wind Monitors

• 05103-L—the standard version
• 05305-L—a more responsive but less rugged version
• 05106-L—a marine-grade version

Specifications

Wind Speed

• Range: 0 to 100 m/s (0 to 224 mph)
• Accuracy: ±0.3 m/s (0.6 mph) or 1% of reading
• Starting Threshold: 1.0 m/s (2.2 mph)
• Distance Constant (63% recovery): 8.9 ft (2.7 m)
• Output: ac voltage (3 pulses per revolution); 90 hz (1800 rpm)=8.8 m/s (19.7 mph)

Wind Direction

• Range: 0 to 360° mechanical, 355° electrical (5° open)
• Accuracy: ±5°
• Starting Threshold at 10° Displacement: 1.1 m/s (2.4 mph)
• Damping Ratio: 0.3
• Damped Natural Wavelength: 24.3 ft (7.4 m)
• Undamped Natural Wavelength: 23.6 ft (7.2 m)
• Output: analog dc voltage from potentiometer—resistance 10 kohms; linearity 0.25%; life expectancy 50 million revolutions
• Power switched excitation voltage supplied by datalogger

Resources

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